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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Which of the following equations is the summary of photosynthesis ?A. `6CO_(2)+12H_(2)OtoC_(6)H_(12)O_(6)+6O_(2)+6H_(2)O`B. `6CO_(2)+H_(2)O + "sunlight" toC_(6)H_(12)O_(6)+O_(2)6H_(2)O`C. `6CO_(2)+12H_(2)O+"Chlorophyll"+"Sunlight"to C_(6)H_(12)O_(6)+6O_(2)+6H_(2)O`D. `6CO_(2)+12H_(2)O+"Chlorophyll"+"Sunlight"toC_(6)H_(12)O_(6)+6CO_(2)+6H_(2)O` |
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Answer» Correct Answer - c The summary equation of photosynthesis is `6CO_(2)+12H_(2)O+"Chlorophyll"+"Sunlight"toC_(6)H_(12)O_(6)+6CO_(2)+6H_(2)O` by using Photosynthesis is a process by which green plants make their own food , e.g., glucose). `CO_(2) and H_(2)O` in the presence of sunlight energy and chlorophyll in the presence of Oxygen gas is released during the process of photosynthesis. |
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| 152. |
Which is the correct sequence of parts in human alimentary canal?A. Mouth `to` Stomach `to` Small intestine `to` Oesophagus `to` Large intestineB. Mouth `to` Oesophagus `to` Stomach `to` Large intestine `to` Small intestineC. Mouth `to` Stomach `to` Oesophagus `to` Small intestine `to` Large intestineD. Mouth `to` Oesophagus `to` Stomach `to` Small intestine `to` Large intestine |
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Answer» Correct Answer - d The various organs in sequence are mouth, oesophagus , stomach , small intestine, large ingestine and anus. The nutrition in human beings takes place through the digestive system, that consists of alimentary canal and assoaicted glands. |
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| 153. |
Which is the correct sequence of parts in human alimentary canal?A. Mouth `rarr` Stomach `rarr` Small intesine `rarr` Oesophagus `rarr` Large intestineB. Mouth `rarr` Oesophagus `rarr` Stomach `rarr` Large intestine `rarr` Small intestineC. Mouth `rarr` Stomach `rarr` Oesophagus `rarr` Small intestine `rarr` Large intestineD. Mouth `rarr` Oesophagus `rarr` Stomach `rarr` Small intestine `rarr` Large intestine |
| Answer» Correct Answer - D | |
| 154. |
Which is the correct sequence of air passage during inhalation ?A. Nostrils `to` Larynx `to` Pharynx `to` Trachea `to` LungsB. Nasal passage `to` Trachea `to` Pharynx `to` Larynx `to` AlveoliC. Larynx `to` Nostrils `to` Pharynx `to` LungsD. Nostrils `to` pharynx `to` Larynx `to` Trachea `to` Alveoli |
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Answer» Correct Answer - d The air for respiration is drawn into our body through the nostrils , it then goes into nasal passage. From their, air enters into the windpipe (or trachea), bronchi, lungs and finally to the alveoil where gaseous exchange takes place. |
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| 155. |
Who determines whether the two organism of a species will be exactly similar or not ? |
| Answer» Method of reproduction will determine whether the two organisms of species will be exactly similar or not. | |
| 156. |
What do you mean by diploid cell ? |
| Answer» A diploid cell is a cell that contains a single set of chromosomes (2n) | |
| 157. |
Whether the new organism is genetically exactly similar to earlier one that has product it ? |
| Answer» Offsprings are genetically different if they reproduce sexually. | |
| 158. |
How much energy do we get from carbohydrates , lipids and protein ? |
| Answer» We get 14 kcal of energy per gram of carbohydrates and proteins , and 9 kcal of energy per gram of lipids. | |
| 159. |
Which hormones are responsible for changes in human body during onset of sexual maturity ? |
| Answer» The hormones responsible for changes in human body during onset of sexual maturity are testosterone in male and estrogen and progesterone in females. | |
| 160. |
Name two common sexual diseases. What are their symptoms ? |
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Answer» (i) Two common sexual diseases are syphilis and gonorrhea. (ii) Both are caused by bacteria . (iii) Symptoms of syphilis are chancre (patches ) on various parts of the body including genitals, rash, fever , inflmmation of joints , alopecia , etc. (iv) Symptoms of gonorrhea are painful and burning sensation during urination , oozing of pus through penis and vegina , inflammation of urinary tract , anus , throat , eyes , etc. |
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| 161. |
Pollen grains are formed by __________ division in locules of anthers . |
| Answer» Correct Answer - meiosis | |
| 162. |
Many times, you cannot eat hot food due to inflammation/ulceration in mouth. |
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Answer» (i) One of the reason for ulcer is deficiency of vitamin `B_(12)`. The inflammation/ulcertion in the mouth makes it painful and irritate the injured cells causing discomfort. Therefore many times, you cannot eat hot food due to inflammation/ulceration in mouth. |
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| 163. |
How the indivdual of a species is formed from existing one of same species ? |
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Answer» (i) New individual of a species is formed from the existing one of the same species by the process of reproduction . (ii) It involves cell division-mitosis and meiosis. |
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| 164. |
What do we mean by maintenance of species ? |
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Answer» (i) The process of reproduction helps to increase the number of organisms of a species by which the species can prevent itself from being extinct . (ii) This is called as maintenance of species . |
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| 165. |
Water is an essential nutrient. |
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Answer» (i) There is about 65-70% water in our body. (ii) Each cell contains 70% water weight by weight. (iii) Blood plasma also contains 90% of water. (iv) Functioning of cells and thereby whole body gets disturbed even if there is a little loss of water from the body. (v) Hence, water is an essential nutrient. |
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| 166. |
Menopause occurs at the age of _______ years.A. 18-20B. 45-50C. 20-30D. 18 |
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Answer» Correct Answer - B 45-50 |
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| 167. |
What would happen if there is insufficient amount of carbohydrates in body due to exceptional conditions like fasting and hunger. |
| Answer» If there is insufficient amount of carbohydrates in obdy due to exceptional conditions like fasting and hunger, then lipids and proteins are used for energy production. | |
| 168. |
Menopause |
| Answer» The natural cessation of menstruation that occurs between age 45-50 years is known as menopause. | |
| 169. |
Pedicellate flowers |
| Answer» Flowers which have a stalk for support (pedicel )are called pedicellate flowers . | |
| 170. |
Describe the process of development and birth in humans. |
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Answer» (i) The zygote formed after fertilizers in the oviduct , undergoes repeated mitotic divisions nd embryo is formed. (ii) Meanwhile , it is pushed towards the uterus. (iii) Once it reaches the uterus , it is implanted nd further development occurs after implantation. (iv) An organ called as placenta is formed for supply of food material during the growth of the embryo in the uterus . (v) Embryonic development is completed approximately within nien months after fertilization following which birth takes places. |
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| 171. |
The action of giving birth to young baby is called ___________. |
| Answer» Correct Answer - Parturition | |
| 172. |
___________ is male whorl and its members are called as stamens. |
| Answer» Correct Answer - androecium | |
| 173. |
Write short note on Adenosine triphosphate (ATP) |
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Answer» (i) Adenosine triphosphate (ATP) is energy rich molecule and energy is stored in the bonds by which phosphate groups are attached to each other. (ii) These molecules are stored in the cells as per need. (iii) Chemically, ATP is a triphosphate molecule formed from Adenosine ribonucteoside. (iv) It contains a nitrogenous compound adenine,pentose sugar ribose and three phosphate groups. (v) As per the need, energy is derived by breaking the phosphate bond of ATP. Hence, ATP is called as the energy currency of the cell. |
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| 174. |
Write short note on Proteins |
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Answer» (i) Proteins are the macromolecules formed by bonding together many amino acids. (ii) Proteins of animal origin are called as first class proteins. (iii) We get 4 kcal of energy per gram of proteins . (iv) Amino acids are obtained after digestion of proteins . (v) These amino acids are absorbed in the body and transported upto each organ adn cell via blood. (vi) Fromo these amino acids, organs and cells produce various proteins necessary for themselves and the whole body . E.g . Melanin , Keratin , Ossein, hemoglobin , etc. |
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| 175. |
What do you mean by haploid cell ? |
| Answer» Haploid cell is a cell that contains a single set of chromosomes. (n) | |
| 176. |
_______ is essential for growth , restoration of emaciated body wound healing, formation of blood cells, etc. |
| Answer» Correct Answer - Mitosis | |
| 177. |
In which part of cell, electron transfer chain reaction occurs?A. CytoplasmB. MitochondriaC. NucleusD. Golgi body |
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Answer» Correct Answer - B Mitochondria |
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| 178. |
Process of glycolysis occurs in cyloplasm |
| Answer» Correct Answer - 1 | |
| 179. |
Electron transfer chain reaction is operated in__________ both . |
| Answer» Correct Answer - mitochondria | |
| 180. |
The instrument for measuring blood pressure is called :A. manometerB. sphygmomanometerC. barometerD. potentiometer |
| Answer» Correct Answer - B | |
| 181. |
Members of calyx are called as petals. |
| Answer» False . Member of calyx are called as sepals. | |
| 182. |
If oocyte is not fertilized within 24 hours , corpus luteum becomes inacitve and transforms into ___________ |
| Answer» corpus albicans | |
| 183. |
Corpus luteum secrets the hormone____________ |
| Answer» Correct Answer - progesterone | |
| 184. |
Which blood vessel does not carry any carbon dioxide ?A. pulmonary arteryB. vena cavaC. hepatic veinD. pulmonary vein |
| Answer» Correct Answer - D | |
| 185. |
Water absorption through roots can be increased by keeping the potted plantsA. in the shadeB. in dm lightC. under the fanD. covered with a polythene bag |
| Answer» Correct Answer - C | |
| 186. |
Which vein brings clean blood from the lungs into the heart ?A. renal veinB. pulmonary veinC. vena cavaD. hepatic vein |
| Answer» Correct Answer - B | |
| 187. |
Choose the correct path of urine in our bodyA. kidney `rarr` ureter `rarr` urethra `rarr` bladderB. kidney `rarr` bladder `rarr` urethra `rarr` ureterC. kidney `rarr` ureter `rarr` bladder `rarr` urethraD. bladder `rarr` kidney `rarr` ureter `rarr` urethra |
| Answer» Correct Answer - C | |
| 188. |
In human digestive system, the enzymes pepsin and trypsin are secreted respectively by :A. pancreas and liverB. stomach and salivary glandsC. pancreas and gall bladderD. stomach and pancreas |
| Answer» Correct Answer - D | |
| 189. |
What is the role of the acid in our stomach? |
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Answer» Followig are the roles of acid in our stomach: `to` The hydrochloric acid present in our stomach dossolves bith of food and creates an acidic medium. In this acidic medium, enzyme pepsinogen is conveted to pepsin, which is a protein-digesting enzyme. `to` It also kills many bacteria and other microorganisms that enter alongwith the food. |
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| 190. |
______ are mainly utilized for production of energy required for daily need. |
| Answer» Carbohydrates | |
| 191. |
What are the functions of gastric glands present in the wall of the stomach? |
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Answer» The stomach wall contains three tubular glands (gastric glands) that secrete gastric juice. The gastric juice contains (a) Hydrochloric acid makes the medium acidic so that enzyme pepsin because active. HCl kills bacteria that may enter the stomach us the food. (b) Mucus helps to protect stomach wall from its own secretions HCl. (c ) Enzyme pepsin begins the digestion of proteins present in food to form smaller molecules. |
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| 192. |
Condensation of thin thread like chromosomes starts in _________. |
| Answer» Correct Answer - Prophase | |
| 193. |
Energy from food is obtained in the form of _________ . |
| Answer» Correct Answer - ATP | |
| 194. |
Our muscles cells perform _______ type of respiration during exercise. |
| Answer» Anaerobic. During exercise, the oxygen supp]y may not be enough for the need of muscles. Hence, anaerobic respiration occurs in the muscle cells and tactic acid accumulates, which is a result of fermentation during which glucose is broken down by anaerobic respiration. | |
| 195. |
We sweat during summer and heavy exercise. |
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Answer» (i) Human beings are warm-blooded. We need to maintain a constant body temperature irrespective of the surrounding conditions. (ii) In summer and during heavy exercise, lot of heat is generated which raises our body temperature . (iii) Sweating leads to loss of excess body heat and brings down the body temperature to normal. (iv) Therefore, we sweat during summer and heavy exercise. |
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| 196. |
Enzymes formed in the cells and used in celluar respiration |
| Answer» `NADH_(2) and FADH_(2)` | |
| 197. |
What is the role of chromosomes in cell division ? |
| Answer» As the genetic material passes from parents to child , the chromosomes are responsible for containing the instruction that make the offspring unique while still carrying traits from their parents . | |
| 198. |
Which different functions are performed by muscle in bosy ? |
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Answer» (i) Muscles bring about movement of arms and legs , running , speaking, walking, etc. (ii) Muscles also bring about movement of eyelids, passage of food through the alimentary canal, contraction and relaxation of blood vessels. (iii) Cardiac muscles bring about contraction and relaxation of the heart. |
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| 199. |
Which of the following increase in muscle cells when they are lacking in oxygen ?A. carbon dioxideB. lactoseC. lactic acidD. uric acid |
| Answer» Correct Answer - C | |
| 200. |
Internal respiration may be defined as:A. breathing in and releasing of oxygen in the tissueB. the oxidation of food substances to release energyC. the building up (synthesis) of complex substancesD. getting rid of carbon dioxide that would accumulate in the tissues. |
| Answer» Correct Answer - B | |